6.2 Review

Front

What are plate boundaries?

Back

Plate boundaries are the edges where two tectonic plates meet. They are significant because most earthquakes and volcanic activity occur along these boundaries.

Front

What is the primary evidence for understanding the Earth's interior?

Back

The primary evidence for understanding the Earth's interior comes from the speed and behavior of seismic waves, which provide insights into the composition and state of the Earth's layers.

Front

What type of energy is released during an earthquake?

Back

Seismic waves are the type of energy that travels through the Earth during an earthquake.

Front

What are the two types of crust?

Back

The two types of crust are oceanic crust, which is denser and thinner, and continental crust, which is thicker and less dense.

Front

What is the Earth's crust?

Back

The Earth's crust is the outermost layer of the Earth, composed of solid rock, and is divided into oceanic and continental crust.

Front

What is the mantle?

Back

The mantle is the layer of the Earth located between the crust and the outer core, composed of semi-solid rock that flows slowly over time.

Front

What is the outer core?

Back

The outer core is the layer of the Earth beneath the mantle, composed of liquid iron and nickel, and is responsible for generating the Earth's magnetic field.

Front

What is the inner core?

Back

The inner core is the solid innermost layer of the Earth, composed primarily of iron and nickel, and is extremely hot and under immense pressure.

Front

What are seismic waves?

Back

Seismic waves are waves of energy that travel through the Earth, generated by earthquakes or other geological processes.

Front

What is the significance of seismic waves in geology?

Back

Seismic waves are significant in geology because they help scientists understand the structure and composition of the Earth's interior.